This was the calendar for 1985 published by Edition Plambeck (Neuss), reproducing another selection of German labour movement postcards from 1900-1923. It is not believed that another calendar like this was published again. All the images came from a collection of photographs by Manfred A. Tripp, which are now held in the Special Collection on Protest Movements at the Hamburg Institute of Social Research. They are reproduced below, for which we thank the Institute for their kind permission.
(Cover image) Posted 1 May 1901 from Basel to Aarhus.
Published in Leipzig, posted 1 May 1910.
Posted 1 May 1911 from Basel to Husum.
Published in Dresden, blank, c.1906.
Published in Munich, posted 24 March 1923.
Published in Leipzig, blank, c.1907.
Published in Berlin, posted 21 June 1926.
Published in Leipzig, blank, c.1906.
Published in Offenbach/Main, posted 12 August 1908.